The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 1985
Filed:
Jan. 30, 1984
William J Chambers, Wilmington, DE (US);
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A photosensitive composition, a photosensitive element employing said composition, and an improved photoimaging method that utilizes the disclosed composition. The improved method concerns a photosensitive element, formed from a photosensitive composition having a substrate layered with silver halide particles in operative association with a polymeric coupler, latently imaged, developed to render the imaged area insoluble, and washed to remove the undeveloped portion of the layer, wherein the improvement comprises addition of selected dispersed pigments to the polymeric coupler so that the optical density of the final image is neutral black.